用户名密码存储到变量中了，属于新手入门级别的示例
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;
namespace 登录窗口3._19
{
public partial class Form1 : Form
{
int number=0;
int maxnumber=3;
public Form1()
{
InitializeComponent();
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
}
private void textBox2_TextChanged(object sender, EventArgs e)
{
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void button1_Click(object sender, EventArgs e)
{
String[] nameArry={"zs","ls","ww"};
String[] passArry = { "zs123", "ls123", "ww123" };
String name = textBox1.Text;
String password = textBox2.Text;
for (int i = 0; i < nameArry.Length; i )
{
if (textBox1.Text == nameArry[i] && textBox2.Text == passArry[i])
{
Form2 f2 = new Form2();
f2.Show();
this.Hide();
break;
}
else if (name == "")
{
MessageBox.Show("请输入用户名", "登陆失败");
number ; break;
}
else if (password == "")
{
MessageBox.Show("请输入密码", "登陆失败");
number ; break;
}
else if(textBox1.Text==nameArry[i]&&textBox2.Text!=passArry[i])
{
MessageBox.Show("用户名或密码不匹配！");
number ; break;
}
}
if (number == maxnumber)
{
MessageBox.Show("错误次数过多！");
Application.Exit();
}
}
private void label1_Click(object sender, EventArgs e)
{
}
}
}
资源文件列表
3.19作业/登录窗口3.19.zip , 1608511
3.19作业/练习.sln , 1863